Author Archives: GCS Dev

Summer Watering Tips

As the days heat up, watering can become a dreaded garden chore and too many gardeners use wasteful techniques that use plenty of water but don’t give their plants the moisture they really need. Make watering plants easier and more efficient with the proper practices and tools…

  • Mulches not only make plantings look more attractive, but their most important functions are to help retain soil moisture and minimize weeds, which would also usurp moisture from your plants. Mulch around plants to a depth of 2-4 inches, refreshing mulch as needed to maintain that depth and attractiveness.
  • Watering cans and small containers work great for spot watering plants with different watering needs by hand. You don’t always need to get out a hose or sprinkler to get the watering done.
  • Check to make sure that you have the proper length hose(s) to reach every corner of your garden. Take into account any obstacles in the way, and be sure you aren’t dragging the hose over any delicate plantings to reach more distant dry spots.
  • Add a water wand to the hose to get the water where it’s most needed – the base of the plants – without needing to bend over repeatedly, which can cause back strain.
  • The best time to water is during the early morning hours of a sunny day. This will allow plants to absorb more water before it evaporates when temperatures rise, but won’t leave water to sit on plants overnight when mold can develop.
  • Always water plants and container gardens thoroughly and deeply to encourage deeper, more drought-tolerant root systems. It is better to water less frequently but more deeply rather than more often but with less water.
  • In the landscape, a good rule of thumb is to provide an inch of water per week minimum. Keep track of precipitation with a rain gauge to avoid wasting water by overwatering when Mother Nature does the job.
  • New individual plants that are set out, direct sown seed beds, sodding, etc. often require daily care, including watering, until established. Check moisture levels carefully during this period so the plants are well cared for.
  • Use soaker hoses to provide slow drip watering. This allows plants to absorb water easily without wasting water by evaporating from foliage or spraying into the air. Soaker hoses can even be layered beneath mulch to preserve as much moisture as possible.
  • Pay extra attention to plants in containers and hanging baskets as they tend to dry out faster and with greater frequency. These plantings will likely need to be watered daily or even multiple times a day during heat waves.
  • Place Tree Gators, a drip irrigation bag, on newly planted trees for slow, steady watering that will soak down to the root system without draining away along the surface of the soil.

If you’ll be away on an extended vacation, or even just for a few days, make arrangements with a trusted friend or neighbor to “plant sit” while you are gone. There’s nothing worse than worrying about your garden while you’re away – except coming home to crisp plants that haven’t been watered properly!

wisewatering1

wisewatering1

Save

Fall Horticultural Oil Application

Autumn is an excellent time to apply horticultural oil. The oil smothers many soft-bodied insects and hard-shelled scales that are impenetrable to many insecticides, and can therefore help control some of the most stubborn insect populations. But is it right for your plants?

About Horticultural Oil

Horticultural oil, or hort oil, is typically derived from petroleum, and is a type of ecologically-friendly mineral oil. Some cottonseed and soybean oils can also be effective horticultural oils. Emulsifying agents are typically added to these oils so they can be mixed with water and used as a spray, which helps distribute them evenly over plant foliage to be most effective.

Pests That Don’t Like Horticultural Oils

Different types of horticultural oils can be effective against many unwanted garden pests, including…

  • Spider mites
  • Aphids
  • Whiteflies
  • Mealy bugs
  • Psyllids
  • Lace bugs
  • Caterpillars

In addition to smothering the larvae or insects directly, the heavy oil also makes it difficult for many insects to crawl therefore starving them to death and preventing them from spreading diseases from plant to plant. Additionally, the oil repels many insects looking for winter homes. The oils also act as fungicide against powdery mildew, rust and leaf spot on some plants.

Applying Horticultural Oils

Application of horticultural oils is easy, requiring only a simple hose-attached sprayer. Because oil and water do not mix, frequent agitation by shaking is required even if the oils are mixed with other agents to be more sprayable. These products are most effective if applied when plants are dormant, since oil-based products can burn and harm actively growing foliage, buds, flowers and fruit. Some lighter weight, summer-formulated oils are available, but they should be used only sparingly and only if absolutely necessary. Autumn and winter are the best seasons to apply horticultural oils when insects are a problem, though autumn applications can occasionally cause problems with plants dying back and other winter damage. Because the oils can evaporate and dissipate quickly, they should only be used when insects are present, otherwise they will be ineffective. In freezing weather the oil coverage will be inconsistent, so cool but not bitterly cold temperatures are best.

Of course, always follow the instructions for proper application rates, plant sensitivity and ideal weather conditions to ensure the most effective treatment. Because these oils are still pesticides, protective gear such as gloves and goggles should also be worn to avoid accidental irritation or more severe contamination.

Using hort oils can be a great way to control insects on your plants, but only if the oils are used appropriately. Come in for a consultation to see if these products can help end your insect problems.

FallHortOIl_1

Save